Don't need to check inited for PSP_Shutdown() now.

UI/EmuScreen.cpp

@@ -590,9 +590,7 @@ void EmuScreen::render() {
 		// set back to running for the next frame
 		coreState = CORE_RUNNING;
 	} else if (coreState == CORE_POWERDOWN)	{
-		if (PSP_IsInited()) {
-			PSP_Shutdown();
-		}
+		PSP_Shutdown();
 		ILOG("SELF-POWERDOWN!");
 		screenManager()->switchScreen(new MainScreen());
 		invalid_ = true;